Technical Notes

Ibsen Phase masks – List of Technical and Application Notes

Phase mask Cleaning

Recommended procedure for regular Phase mask cleaning.

Influence of polarization on fringe visibility

This Application Note explains how different polarizations affect the fringe visibility of the interference pattern, and describes the methods used to calculate the fringe visibility, given 3 specific polarizations (TE, TM, and unpolarized).

Criteria of suitability of the 0/-1 order principle

This technical note derives the relationship between Phase mask period and Illumination wavelength that must be fulfilled for the 0/-1 order principle to work.

NFH paper

Production Optimization of Narrow Pitch Grating Fabrication using Near-Field Holography.